Numbers k such that k and k+1 have the same sum of unitary divisors and the same number of divisors.

A064348

Numbers k such that k and k+1 have the same sum of unitary divisors and the same number of divisors.

Terms

    a(0) =14a(1) =44a(2) =1334a(3) =1634a(4) =2295a(5) =2685a(6) =3195a(7) =17255a(8) =33998a(9) =42818a(10) =45716a(11) =79316a(12) =84134a(13) =122073a(14) =124676a(15) =125811a(16) =166934a(17) =239499a(18) =289454a(19) =294151a(20) =383594a(21) =440013a(22) =544334a(23) =605985a(24) =649154a(25) =655005a(26) =736515a(27) =1163624a(28) =1325511a(29) =1364104

External references